"use client";

import {
	Archive,
	ArrowRightLeft,
	Brain,
	Check,
	ChevronRight,
	Cpu,
	Download,
	ExternalLink,
	FileText,
	FlaskConical,
	FolderRoot,
	GitBranch,
	KeyRound,
	LifeBuoy,
	LoaderCircle,
	LogIn,
	LogOut,
	PencilLine,
	Radio,
	RefreshCw,
	Search,
	ShieldCheck,
	SlidersHorizontal,
	SquareTerminal,
	X,
} from "lucide-react";
import { useEffect, useMemo, useRef, useState } from "react";

import { toast } from "sonner";

import { Badge } from "@/components/ui/badge";
import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { ScrollArea } from "@/components/ui/scroll-area";
import {
	Sheet,
	SheetContent,
	SheetDescription,
	SheetHeader,
	SheetTitle,
} from "@/components/ui/sheet";
import { Switch } from "@/components/ui/switch";
import { Textarea } from "@/components/ui/textarea";
import {
	Tooltip,
	TooltipContent,
	TooltipTrigger,
} from "@/components/ui/tooltip";
import {
	COMMAND_SURFACE_THINKING_LEVELS,
	type CommandSurfaceSection,
	type CommandSurfaceTarget,
} from "@/lib/command-surface-contract";
import { DEV_OVERRIDE_REGISTRY, useDevOverrides } from "@/lib/dev-overrides";
import {
	formatCost,
	formatTokens,
	getModelLabel,
	getSessionLabelFromBridge,
	shortenPath,
	useSFWorkspaceActions,
	useSFWorkspaceState,
} from "@/lib/sf-workspace-store";
import { cn } from "@/lib/utils";
import {
	DoctorPanel,
	ForensicsPanel,
	SkillHealthPanel,
} from "./diagnostics-panels";
import { KnowledgeCapturesPanel } from "./knowledge-captures-panel";
import { DevRootSettingsSection } from "./projects-view";
import {
	CleanupPanel,
	ExportPanel,
	HistoryPanel,
	HooksPanel,
	InspectPanel,
	QueuePanel,
	QuickPanel,
	StatusPanel,
	SteerPanel,
	UndoPanel,
} from "./remaining-command-panels";
import {
	BudgetPanel,
	ExperimentalPanel,
	GeneralPanel,
	ModelRoutingPanel,
	PrefsPanel,
	RemoteQuestionsPanel,
} from "./settings-panels";

// ─── Section metadata ────────────────────────────────────────────────

const SETTINGS_SURFACE_SECTIONS = [
	"general",
	"model",
	"session-behavior",
	"recovery",
	"auth",
	"integrations",
	"workspace",
	"experimental",
] as const;
const ADMIN_SECTION: CommandSurfaceSection = "admin";
const GIT_SURFACE_SECTIONS = ["git"] as const;
const SESSION_SURFACE_SECTIONS = [
	"resume",
	"name",
	"fork",
	"session",
	"compact",
] as const;

function availableSectionsForSurface(
	surface: string | null,
	includeAdmin: boolean = false,
): CommandSurfaceSection[] {
	switch (surface) {
		case "git":
			return [...GIT_SURFACE_SECTIONS];
		case "resume":
		case "name":
		case "fork":
		case "session":
		case "export":
		case "compact":
			return [...SESSION_SURFACE_SECTIONS];
		default:
			return includeAdmin
				? [...SETTINGS_SURFACE_SECTIONS, ADMIN_SECTION]
				: [...SETTINGS_SURFACE_SECTIONS];
	}
}

function sectionLabel(section: CommandSurfaceSection): string {
	const labels: Partial<Record<CommandSurfaceSection, string>> = {
		general: "General",
		model: "Model",
		thinking: "Thinking",
		queue: "Queue",
		compaction: "Compaction",
		retry: "Retry",
		"session-behavior": "Session",
		recovery: "Recovery",
		auth: "Auth",
		admin: "Admin",
		git: "Git",
		resume: "Resume",
		name: "Name",
		fork: "Fork",
		session: "Session",
		compact: "Compact",
		workspace: "Workspace",
		integrations: "Integrations",
		experimental: "Experimental",
	};
	return labels[section] ?? section;
}

function sectionIcon(section: CommandSurfaceSection) {
	const icons: Partial<Record<CommandSurfaceSection, React.ReactNode>> = {
		general: <SlidersHorizontal className="h-4 w-4" />,
		model: <Cpu className="h-4 w-4" />,
		thinking: <Brain className="h-4 w-4" />,
		queue: <ArrowRightLeft className="h-4 w-4" />,
		compaction: <Archive className="h-4 w-4" />,
		retry: <RefreshCw className="h-4 w-4" />,
		"session-behavior": <ArrowRightLeft className="h-4 w-4" />,
		recovery: <LifeBuoy className="h-4 w-4" />,
		auth: <ShieldCheck className="h-4 w-4" />,
		admin: <SquareTerminal className="h-4 w-4" />,
		git: <GitBranch className="h-4 w-4" />,
		resume: <ArrowRightLeft className="h-4 w-4" />,
		name: <PencilLine className="h-4 w-4" />,
		fork: <GitBranch className="h-4 w-4" />,
		session: <FileText className="h-4 w-4" />,
		compact: <Archive className="h-4 w-4" />,
		workspace: <FolderRoot className="h-4 w-4" />,
		integrations: <Radio className="h-4 w-4" />,
		experimental: <FlaskConical className="h-4 w-4" />,
	};
	return icons[section] ?? null;
}

function surfaceTitle(surface: string | null): string {
	const titles: Record<string, string> = {
		model: "Model",
		thinking: "Thinking",
		git: "Git",
		login: "Login",
		logout: "Logout",
		settings: "Settings",
		resume: "Resume",
		name: "Name",
		fork: "Fork",
		session: "Session",
		export: "Export",
		compact: "Compact",
	};
	return titles[surface ?? ""] ?? "Settings";
}

function currentAuthIntent(
	activeSurface: string | null,
	selectedTarget: CommandSurfaceTarget | null,
): "login" | "logout" | "manage" {
	if (selectedTarget?.kind === "auth") return selectedTarget.intent;
	if (activeSurface === "login") return "login";
	if (activeSurface === "logout") return "logout";
	return "manage";
}

function formatRelativeTime(isoDate: string): string {
	const now = Date.now();
	const then = new Date(isoDate).getTime();
	const diffMs = now - then;
	if (diffMs < 60_000) return "just now";
	const minutes = Math.floor(diffMs / 60_000);
	if (minutes < 60) return `${minutes}m ago`;
	const hours = Math.floor(minutes / 60);
	if (hours < 24) return `${hours}h ago`;
	const days = Math.floor(hours / 24);
	return `${days}d ago`;
}

// ─── Inline status dot ──────────────────────────────────────────────

function StatusDot({
	status,
}: {
	status: "ok" | "warning" | "error" | "idle";
}) {
	return (
		<span
			className={cn(
				"inline-block h-1.5 w-1.5 rounded-full",
				status === "ok" && "bg-success",
				status === "warning" && "bg-warning",
				status === "error" && "bg-destructive",
				status === "idle" && "bg-foreground/20",
			)}
		/>
	);
}

// ─── Inline section header ──────────────────────────────────────────

function SectionHeader({
	title,
	action,
	status,
}: {
	title: string;
	action?: React.ReactNode;
	status?: React.ReactNode;
}) {
	return (
		<div className="flex items-center justify-between gap-3 pb-4">
			<div className="flex items-center gap-2.5">
				<h3 className="text-[13px] font-semibold uppercase tracking-[0.08em] text-muted-foreground">
					{title}
				</h3>
				{status}
			</div>
			{action}
		</div>
	);
}

// ─── Inline key-value row ───────────────────────────────────────────

function KV({
	label,
	children,
	mono,
}: {
	label: string;
	children: React.ReactNode;
	mono?: boolean;
}) {
	return (
		<div className="flex items-baseline justify-between gap-4 py-1.5 text-sm">
			<span className="shrink-0 text-muted-foreground">{label}</span>
			<span
				className={cn(
					"text-right text-foreground",
					mono && "font-mono text-xs",
				)}
			>
				{children}
			</span>
		</div>
	);
}

// ─── Toggle row: label + switch ─────────────────────────────────────

function ToggleRow({
	label,
	description,
	checked,
	onCheckedChange,
	disabled,
	busy,
	testId,
}: {
	label: string;
	description?: string;
	checked: boolean;
	onCheckedChange: (checked: boolean) => void;
	disabled?: boolean;
	busy?: boolean;
	testId?: string;
}) {
	return (
		<div className="flex items-start justify-between gap-4 rounded-lg border border-border/50 bg-card/50 px-4 py-3">
			<div className="min-w-0">
				<div className="flex items-center gap-2 text-sm font-medium text-foreground">
					{label}
					{busy && (
						<LoaderCircle className="h-3 w-3 animate-spin text-muted-foreground" />
					)}
				</div>
				{description && (
					<p className="mt-0.5 text-xs text-muted-foreground">{description}</p>
				)}
			</div>
			<Switch
				checked={checked}
				onCheckedChange={onCheckedChange}
				disabled={disabled || busy}
				data-testid={testId}
			/>
		</div>
	);
}

// ─── Segmented control ──────────────────────────────────────────────

function SegmentedControl<T extends string>({
	options,
	value,
	onChange,
	disabled,
}: {
	options: { value: T; label: string }[];
	value: T | null;
	onChange: (value: T) => void;
	disabled?: boolean;
}) {
	return (
		<div className="inline-flex rounded-lg border border-border bg-card/50 p-0.5">
			{options.map((opt) => (
				<button
					key={opt.value}
					type="button"
					className={cn(
						"rounded-md px-3 py-1.5 text-xs font-medium transition-all",
						value === opt.value
							? "bg-foreground/10 text-foreground shadow-sm"
							: "text-muted-foreground hover:text-foreground",
					)}
					onClick={() => onChange(opt.value)}
					disabled={disabled || value === opt.value}
				>
					{opt.label}
				</button>
			))}
		</div>
	);
}

// ═════════════════════════════════════════════════════════════════════
// MAIN COMPONENT
// ═════════════════════════════════════════════════════════════════════

export function CommandSurface() {
	const workspace = useSFWorkspaceState();
	const {
		closeCommandSurface,
		openCommandSurface,
		refreshBoot,
		setCommandSurfaceSection,
		selectCommandSurfaceTarget,
		loadGitSummary,
		loadRecoveryDiagnostics,
		loadForensicsDiagnostics,
		loadDoctorDiagnostics,
		loadSkillHealthDiagnostics,
		loadKnowledgeData,
		loadCapturesData,
		loadSettingsData,
		updateSessionBrowserState,
		loadSessionBrowser,
		renameSessionFromSurface,
		loadAvailableModels,
		applyModelSelection,
		applyThinkingLevel,
		setSteeringModeFromSurface,
		setFollowUpModeFromSurface,
		setAutoCompactionFromSurface,
		setAutoRetryFromSurface,
		abortRetryFromSurface,
		switchSessionFromSurface,
		loadSessionStats,
		exportSessionFromSurface,
		loadForkMessages,
		forkSessionFromSurface,
		compactSessionFromSurface,
		saveApiKeyFromSurface,
		startProviderFlowFromSurface,
		submitProviderFlowInputFromSurface,
		cancelProviderFlowFromSurface,
		logoutProviderFromSurface,
		loadHistoryData,
		loadInspectData,
		loadHooksData,
		loadUndoInfo,
		loadCleanupData,
		loadSteerData,
	} = useSFWorkspaceActions();

	const { commandSurface } = workspace;
	const onboarding = workspace.boot?.onboarding ?? null;
	const activeFlow = onboarding?.activeFlow ?? null;
	const gitSummary = commandSurface.gitSummary;
	const recovery = commandSurface.recovery;
	const sessionBrowser = commandSurface.sessionBrowser;
	const liveSessionState = workspace.boot?.bridge.sessionState ?? null;
	const settingsRequests = commandSurface.settingsRequests;
	const currentModelLabel = getModelLabel(workspace.boot?.bridge);
	const currentSessionLabel = getSessionLabelFromBridge(workspace.boot?.bridge);
	const [apiKeys, setApiKeys] = useState<Record<string, string>>({});
	const [flowInput, setFlowInput] = useState("");
	const commandSurfaceViewportRef = useRef<HTMLDivElement>(null);

	// ─── Auto-loaders ──────────────────────────────────────────────────

	useEffect(() => {
		if (!commandSurface.open || commandSurface.section !== "model") return;
		if (commandSurface.availableModels.length > 0) return;
		if (commandSurface.pendingAction === "loading_models") return;
		void loadAvailableModels();
	}, [
		commandSurface.open,
		commandSurface.section,
		commandSurface.availableModels.length,
		commandSurface.pendingAction,
		loadAvailableModels,
	]);

	useEffect(() => {
		if (!commandSurface.open || commandSurface.section !== "git") return;
		if (commandSurface.pendingAction === "load_git_summary") return;
		if (commandSurface.gitSummary.loaded || commandSurface.gitSummary.error)
			return;
		void loadGitSummary();
	}, [
		commandSurface.open,
		commandSurface.section,
		commandSurface.pendingAction,
		commandSurface.gitSummary.loaded,
		commandSurface.gitSummary.error,
		loadGitSummary,
	]);

	useEffect(() => {
		if (!commandSurface.open || commandSurface.section !== "recovery") return;
		if (commandSurface.pendingAction === "load_recovery_diagnostics") return;
		if (commandSurface.recovery.pending) return;
		if (
			commandSurface.recovery.loaded &&
			!commandSurface.recovery.stale &&
			!commandSurface.recovery.error
		)
			return;
		void loadRecoveryDiagnostics();
	}, [
		commandSurface.open,
		commandSurface.section,
		commandSurface.pendingAction,
		commandSurface.recovery.pending,
		commandSurface.recovery.loaded,
		commandSurface.recovery.stale,
		commandSurface.recovery.error,
		loadRecoveryDiagnostics,
	]);

	// Auto-fetch diagnostics panels when their sections open
	const diagnostics = commandSurface.diagnostics;
	const knowledgeCaptures = commandSurface.knowledgeCaptures;
	const settingsData = commandSurface.settingsData;
	const remainingCommands = commandSurface.remainingCommands;
	useEffect(() => {
		if (!commandSurface.open) return;
		if (
			commandSurface.section === "sf-forensics" &&
			diagnostics.forensics.phase === "idle"
		) {
			void loadForensicsDiagnostics();
		} else if (
			commandSurface.section === "sf-doctor" &&
			diagnostics.doctor.phase === "idle"
		) {
			void loadDoctorDiagnostics();
		} else if (
			commandSurface.section === "sf-skill-health" &&
			diagnostics.skillHealth.phase === "idle"
		) {
			void loadSkillHealthDiagnostics();
		} else if (
			commandSurface.section === "sf-knowledge" &&
			knowledgeCaptures.knowledge.phase === "idle"
		) {
			void loadKnowledgeData();
			void loadCapturesData();
		} else if (
			(commandSurface.section === "sf-capture" ||
				commandSurface.section === "sf-triage") &&
			knowledgeCaptures.captures.phase === "idle"
		) {
			void loadCapturesData();
			void loadKnowledgeData();
		} else if (
			(commandSurface.section === "sf-prefs" ||
				commandSurface.section === "sf-mode" ||
				commandSurface.section === "sf-config" ||
				commandSurface.section === "experimental") &&
			settingsData.phase === "idle"
		) {
			void loadSettingsData();
		} else if (
			commandSurface.section === "sf-history" &&
			remainingCommands.history.phase === "idle"
		) {
			void loadHistoryData();
		} else if (
			commandSurface.section === "sf-inspect" &&
			remainingCommands.inspect.phase === "idle"
		) {
			void loadInspectData();
		} else if (
			commandSurface.section === "sf-hooks" &&
			remainingCommands.hooks.phase === "idle"
		) {
			void loadHooksData();
		} else if (
			commandSurface.section === "sf-undo" &&
			remainingCommands.undo.phase === "idle"
		) {
			void loadUndoInfo();
		} else if (
			commandSurface.section === "sf-cleanup" &&
			remainingCommands.cleanup.phase === "idle"
		) {
			void loadCleanupData();
		} else if (
			commandSurface.section === "sf-steer" &&
			remainingCommands.steer.phase === "idle"
		) {
			void loadSteerData();
		}
	}, [
		commandSurface.open,
		commandSurface.section,
		diagnostics.forensics.phase,
		diagnostics.doctor.phase,
		diagnostics.skillHealth.phase,
		knowledgeCaptures.knowledge.phase,
		knowledgeCaptures.captures.phase,
		settingsData.phase,
		remainingCommands.history.phase,
		remainingCommands.inspect.phase,
		remainingCommands.hooks.phase,
		remainingCommands.undo.phase,
		remainingCommands.cleanup.phase,
		remainingCommands.steer.phase,
		loadForensicsDiagnostics,
		loadDoctorDiagnostics,
		loadSkillHealthDiagnostics,
		loadKnowledgeData,
		loadCapturesData,
		loadSettingsData,
		loadHistoryData,
		loadInspectData,
		loadHooksData,
		loadUndoInfo,
		loadCleanupData,
		loadSteerData,
	]);

	useEffect(() => {
		if (
			!commandSurface.open ||
			(commandSurface.section !== "resume" && commandSurface.section !== "name")
		)
			return;
		if (commandSurface.pendingAction === "load_session_browser") return;
		if (commandSurface.sessionBrowser.loaded) return;
		void loadSessionBrowser();
	}, [
		commandSurface.open,
		commandSurface.section,
		commandSurface.pendingAction,
		commandSurface.sessionBrowser.loaded,
		loadSessionBrowser,
	]);

	useEffect(() => {
		if (!commandSurface.open) return;
		const viewport = commandSurfaceViewportRef.current;
		if (!viewport) return;
		viewport.scrollTop = 0;
	}, [commandSurface.open]);

	useEffect(() => {
		if (!commandSurface.open || commandSurface.section !== "session") return;
		if (commandSurface.sessionStats) return;
		if (commandSurface.pendingAction === "load_session_stats") return;
		void loadSessionStats();
	}, [
		commandSurface.open,
		commandSurface.section,
		commandSurface.sessionStats,
		commandSurface.pendingAction,
		loadSessionStats,
	]);

	useEffect(() => {
		if (!commandSurface.open || commandSurface.section !== "fork") return;
		if (commandSurface.forkMessages.length > 0) return;
		if (commandSurface.pendingAction === "load_fork_messages") return;
		void loadForkMessages();
	}, [
		commandSurface.open,
		commandSurface.section,
		commandSurface.forkMessages.length,
		commandSurface.pendingAction,
		loadForkMessages,
	]);

	useEffect(() => {
		if (!commandSurface.open || commandSurface.section !== "resume") return;
		const selectedResumeTarget =
			commandSurface.selectedTarget?.kind === "resume"
				? commandSurface.selectedTarget
				: null;
		if (selectedResumeTarget?.sessionPath) return;
		const defaultSession =
			sessionBrowser.sessions.find((session) => !session.isActive) ??
			sessionBrowser.sessions[0];
		if (!defaultSession) return;
		selectCommandSurfaceTarget({
			kind: "resume",
			sessionPath: defaultSession.path,
		});
	}, [
		commandSurface.open,
		commandSurface.section,
		commandSurface.selectedTarget,
		sessionBrowser.sessions,
		selectCommandSurfaceTarget,
	]);

	useEffect(() => {
		if (!commandSurface.open || commandSurface.section !== "name") return;
		const selectedNameTarget =
			commandSurface.selectedTarget?.kind === "name"
				? commandSurface.selectedTarget
				: null;
		if (selectedNameTarget?.sessionPath) return;
		const defaultSession =
			sessionBrowser.sessions.find((session) => session.isActive) ??
			sessionBrowser.sessions[0];
		if (!defaultSession) return;
		selectCommandSurfaceTarget({
			kind: "name",
			sessionPath: defaultSession.path,
			name: defaultSession.name ?? "",
		});
	}, [
		commandSurface.open,
		commandSurface.section,
		commandSurface.selectedTarget,
		sessionBrowser.sessions,
		selectCommandSurfaceTarget,
	]);

	useEffect(() => {
		const resetTimer = window.setTimeout(() => {
			setFlowInput("");
		}, 0);
		return () => window.clearTimeout(resetTimer);
	}, []);

	// ─── Toast on action results ───────────────────────────────────────

	useEffect(() => {
		if (commandSurface.lastError) {
			toast.error(commandSurface.lastError);
		}
	}, [commandSurface.lastError]);

	useEffect(() => {
		if (commandSurface.lastResult) {
			toast.success(commandSurface.lastResult);
		}
	}, [commandSurface.lastResult]);

	// ─── Derived state ─────────────────────────────────────────────────

	const selectedModelTarget =
		commandSurface.selectedTarget?.kind === "model"
			? commandSurface.selectedTarget
			: null;
	const selectedThinkingTarget =
		commandSurface.selectedTarget?.kind === "thinking"
			? commandSurface.selectedTarget
			: null;
	const selectedAuthTarget =
		commandSurface.selectedTarget?.kind === "auth"
			? commandSurface.selectedTarget
			: null;
	const selectedResumeTarget =
		commandSurface.selectedTarget?.kind === "resume"
			? commandSurface.selectedTarget
			: null;
	const selectedNameTarget =
		commandSurface.selectedTarget?.kind === "name"
			? commandSurface.selectedTarget
			: null;
	const selectedForkTarget =
		commandSurface.selectedTarget?.kind === "fork"
			? commandSurface.selectedTarget
			: null;
	const selectedSessionTarget =
		commandSurface.selectedTarget?.kind === "session"
			? commandSurface.selectedTarget
			: null;
	const selectedCompactTarget =
		commandSurface.selectedTarget?.kind === "compact"
			? commandSurface.selectedTarget
			: null;
	const selectedAuthIntent = currentAuthIntent(
		commandSurface.activeSurface,
		commandSurface.selectedTarget,
	);
	const selectedAuthProvider =
		onboarding?.required.providers.find(
			(provider) => provider.id === selectedAuthTarget?.providerId,
		) ?? null;
	const modelQuery = (selectedModelTarget?.query ?? commandSurface.args)
		.trim()
		.toLowerCase();
	const filteredModels = useMemo(() => {
		if (!modelQuery) return commandSurface.availableModels;
		return commandSurface.availableModels.filter((model) =>
			`${model.provider} ${model.modelId} ${model.name ?? ""}`
				.toLowerCase()
				.includes(modelQuery),
		);
	}, [commandSurface.availableModels, modelQuery]);

	// Group filtered models by provider for display
	const groupedModels = useMemo(() => {
		const groups = new Map<string, typeof filteredModels>();
		for (const model of filteredModels) {
			const key = model.provider;
			const existing = groups.get(key);
			if (existing) existing.push(model);
			else groups.set(key, [model]);
		}
		return groups;
	}, [filteredModels]);

	const authBusy = workspace.onboardingRequestState !== "idle";
	const modelBusy =
		commandSurface.pendingAction === "loading_models" ||
		workspace.commandInFlight === "get_available_models";
	const gitSummaryBusy = commandSurface.pendingAction === "load_git_summary";
	const recoveryBusy =
		commandSurface.pendingAction === "load_recovery_diagnostics" ||
		recovery.pending;
	const recoveryDiagnostics = recovery.diagnostics;
	const sessionBrowserBusy =
		commandSurface.pendingAction === "load_session_browser";
	const forkBusy =
		commandSurface.pendingAction === "load_fork_messages" ||
		commandSurface.pendingAction === "fork_session";
	const sessionBusy =
		commandSurface.pendingAction === "load_session_stats" ||
		commandSurface.pendingAction === "export_html";
	const resumeBusy = commandSurface.pendingAction === "switch_session";
	const renameBusy = commandSurface.pendingAction === "rename_session";
	const compactBusy =
		commandSurface.pendingAction === "compact_session" ||
		liveSessionState?.isCompacting === true;
	const queueBusy =
		settingsRequests.steeringMode.pending ||
		settingsRequests.followUpMode.pending;
	const autoCompactionBusy = settingsRequests.autoCompaction.pending;
	const autoRetryBusy = settingsRequests.autoRetry.pending;
	const abortRetryBusy = settingsRequests.abortRetry.pending;
	const selectedProviderApiKey = selectedAuthProvider
		? (apiKeys[selectedAuthProvider.id] ?? "")
		: "";
	const devOverrides = useDevOverrides();
	const surfaceSections = availableSectionsForSurface(
		commandSurface.activeSurface,
		devOverrides.isDevMode,
	);
	const surfaceKindLabel = `/${commandSurface.activeSurface ?? "settings"}`;

	const triggerRecoveryBrowserAction = (actionId: string) => {
		switch (actionId) {
			case "refresh_diagnostics":
				void loadRecoveryDiagnostics();
				return;
			case "refresh_workspace":
				void refreshBoot({ soft: true });
				return;
			case "open_retry_controls":
				setCommandSurfaceSection("retry");
				return;
			case "open_resume_controls":
				openCommandSurface("resume", { source: "surface" });
				return;
			case "open_auth_controls":
				setCommandSurfaceSection("auth");
				return;
			default:
				return;
		}
	};

	// ═══════════════════════════════════════════════════════════════════
	// SECTION RENDERERS
	// ═══════════════════════════════════════════════════════════════════

	const renderModelSection = () => (
		<div className="space-y-4" data-testid="command-surface-models">
			<SectionHeader
				title="Model"
				status={
					<span className="font-mono text-xs text-muted-foreground">
						{currentModelLabel}
					</span>
				}
				action={
					<Button
						type="button"
						variant="ghost"
						size="sm"
						onClick={() => void loadAvailableModels()}
						disabled={modelBusy}
						className="h-7 gap-1.5 text-xs"
					>
						<RefreshCw className={cn("h-3 w-3", modelBusy && "animate-spin")} />
						Refresh
					</Button>
				}
			/>

			{/* Search filter */}
			<div className="relative">
				<Search className="absolute left-3 top-1/2 h-3.5 w-3.5 -translate-y-1/2 text-muted-foreground" />
				<Input
					value={selectedModelTarget?.query ?? commandSurface.args}
					onChange={(e) =>
						selectCommandSurfaceTarget({
							kind: "model",
							provider: selectedModelTarget?.provider,
							modelId: selectedModelTarget?.modelId,
							query: e.target.value,
						})
					}
					placeholder="Filter models…"
					className="h-8 pl-9 text-xs"
				/>
			</div>

			{/* Model list */}
			{modelBusy && commandSurface.availableModels.length === 0 ? (
				<div className="flex items-center gap-2 py-8 text-xs text-muted-foreground">
					<LoaderCircle className="h-3.5 w-3.5 animate-spin" />
					Loading models…
				</div>
			) : filteredModels.length > 0 ? (
				<div className="space-y-4">
					{Array.from(groupedModels.entries()).map(([provider, models]) => (
						<div key={provider}>
							<div className="mb-1.5 px-1 text-[10px] font-semibold uppercase tracking-widest text-muted-foreground">
								{provider}
							</div>
							<div className="space-y-0.5">
								{models.map((model) => {
									const selected =
										selectedModelTarget?.provider === model.provider &&
										selectedModelTarget?.modelId === model.modelId;
									return (
										<button
											key={`${model.provider}/${model.modelId}`}
											type="button"
											className={cn(
												"group flex w-full items-center gap-3 rounded-lg px-3 py-2 text-left transition-colors",
												selected
													? "bg-foreground/[0.07]"
													: "hover:bg-foreground/[0.03]",
											)}
											onClick={() =>
												selectCommandSurfaceTarget({
													kind: "model",
													provider: model.provider,
													modelId: model.modelId,
													query: selectedModelTarget?.query,
												})
											}
										>
											{/* Selection indicator */}
											<div
												className={cn(
													"flex h-4 w-4 shrink-0 items-center justify-center rounded-full border transition-colors",
													selected
														? "border-foreground bg-foreground"
														: "border-foreground/25",
												)}
											>
												{selected && (
													<Check className="h-2.5 w-2.5 text-background" />
												)}
											</div>

											{/* Model info */}
											<div className="min-w-0 flex-1">
												<div className="flex items-center gap-2">
													<span className="text-sm font-medium text-foreground">
														{model.name || model.modelId}
													</span>
													{model.isCurrent && <StatusDot status="ok" />}
												</div>
												<div className="mt-0.5 font-mono text-[11px] text-muted-foreground">
													{model.modelId}
												</div>
											</div>

											{/* Badges */}
											<div className="flex shrink-0 items-center gap-1.5">
												{model.isCurrent && (
													<span className="rounded bg-foreground/10 px-1.5 py-0.5 text-[10px] font-medium text-muted-foreground">
														Active
													</span>
												)}
												{model.reasoning && (
													<span className="rounded bg-foreground/10 px-1.5 py-0.5 text-[10px] font-medium text-muted-foreground">
														Thinking
													</span>
												)}
											</div>
										</button>
									);
								})}
							</div>
						</div>
					))}
				</div>
			) : (
				<p className="py-6 text-center text-xs text-muted-foreground">
					No models matched.
				</p>
			)}

			{/* Apply */}
			<div className="flex justify-end border-t border-border/50 pt-3">
				<Button
					type="button"
					size="sm"
					onClick={() =>
						selectedModelTarget?.provider &&
						selectedModelTarget?.modelId &&
						void applyModelSelection(
							selectedModelTarget.provider,
							selectedModelTarget.modelId,
						)
					}
					disabled={
						!selectedModelTarget?.provider ||
						!selectedModelTarget.modelId ||
						commandSurface.pendingAction === "set_model"
					}
					data-testid="command-surface-apply-model"
					className="h-8 gap-1.5"
				>
					{commandSurface.pendingAction === "set_model" ? (
						<LoaderCircle className="h-3.5 w-3.5 animate-spin" />
					) : (
						<Check className="h-3.5 w-3.5" />
					)}
					Apply model
				</Button>
			</div>
		</div>
	);

	const renderThinkingSection = () => (
		<div className="space-y-4" data-testid="command-surface-thinking">
			<SectionHeader
				title="Thinking level"
				status={
					<span className="font-mono text-xs text-muted-foreground">
						{workspace.boot?.bridge.sessionState?.thinkingLevel ?? "off"}
					</span>
				}
			/>

			<div className="space-y-1">
				{COMMAND_SURFACE_THINKING_LEVELS.map((level) => {
					const selected = selectedThinkingTarget?.level === level;
					const isCurrent =
						workspace.boot?.bridge.sessionState?.thinkingLevel === level;
					const description =
						level === "off"
							? "No reasoning overhead"
							: level === "minimal"
								? "Light reasoning"
								: level === "low"
									? "Basic analysis"
									: level === "medium"
										? "Balanced reasoning"
										: level === "high"
											? "Deep analysis"
											: "Maximum deliberation";
					return (
						<button
							key={level}
							type="button"
							className={cn(
								"flex w-full items-center gap-3 rounded-lg px-3 py-2.5 text-left transition-colors",
								selected
									? "bg-foreground/[0.07]"
									: "hover:bg-foreground/[0.03]",
							)}
							onClick={() =>
								selectCommandSurfaceTarget({ kind: "thinking", level })
							}
						>
							<div
								className={cn(
									"flex h-4 w-4 shrink-0 items-center justify-center rounded-full border transition-colors",
									selected
										? "border-foreground bg-foreground"
										: "border-foreground/25",
								)}
							>
								{selected && <Check className="h-2.5 w-2.5 text-background" />}
							</div>
							<div className="min-w-0 flex-1">
								<div className="flex items-center gap-2">
									<span className="text-sm font-medium capitalize text-foreground">
										{level}
									</span>
									{isCurrent && <StatusDot status="ok" />}
								</div>
								<span className="text-xs text-muted-foreground">
									{description}
								</span>
							</div>
						</button>
					);
				})}
			</div>

			<div className="flex justify-end border-t border-border/50 pt-3">
				<Button
					type="button"
					size="sm"
					onClick={() =>
						selectedThinkingTarget &&
						void applyThinkingLevel(selectedThinkingTarget.level)
					}
					disabled={
						!selectedThinkingTarget ||
						commandSurface.pendingAction === "set_thinking_level"
					}
					data-testid="command-surface-apply-thinking"
					className="h-8 gap-1.5"
				>
					{commandSurface.pendingAction === "set_thinking_level" ? (
						<LoaderCircle className="h-3.5 w-3.5 animate-spin" />
					) : (
						<Check className="h-3.5 w-3.5" />
					)}
					Apply
				</Button>
			</div>
		</div>
	);

	const renderQueueSection = () => (
		<div className="space-y-5" data-testid="command-surface-queue-settings">
			<SectionHeader title="Queue modes" />

			{/* Steering mode */}
			<div className="space-y-3">
				<div className="flex items-center justify-between">
					<div>
						<div className="text-sm font-medium text-foreground">
							Steering mode
						</div>
						<p className="text-xs text-muted-foreground">
							How steering messages queue during streaming
						</p>
					</div>
					{settingsRequests.steeringMode.pending && (
						<LoaderCircle className="h-3.5 w-3.5 animate-spin text-muted-foreground" />
					)}
				</div>
				<SegmentedControl
					options={[
						{ value: "all" as const, label: "Queue all" },
						{ value: "one-at-a-time" as const, label: "One at a time" },
					]}
					value={liveSessionState?.steeringMode ?? null}
					onChange={(v) => void setSteeringModeFromSurface(v)}
					disabled={!liveSessionState || queueBusy}
				/>
				{settingsRequests.steeringMode.error && (
					<p className="text-xs text-destructive">
						{settingsRequests.steeringMode.error}
					</p>
				)}
			</div>

			<div className="border-t border-border/50" />

			{/* Follow-up mode */}
			<div className="space-y-3">
				<div className="flex items-center justify-between">
					<div>
						<div className="text-sm font-medium text-foreground">
							Follow-up mode
						</div>
						<p className="text-xs text-muted-foreground">
							How follow-up prompts sequence during a live turn
						</p>
					</div>
					{settingsRequests.followUpMode.pending && (
						<LoaderCircle className="h-3.5 w-3.5 animate-spin text-muted-foreground" />
					)}
				</div>
				<SegmentedControl
					options={[
						{ value: "all" as const, label: "Queue all" },
						{ value: "one-at-a-time" as const, label: "One at a time" },
					]}
					value={liveSessionState?.followUpMode ?? null}
					onChange={(v) => void setFollowUpModeFromSurface(v)}
					disabled={!liveSessionState || queueBusy}
				/>
				{settingsRequests.followUpMode.error && (
					<p className="text-xs text-destructive">
						{settingsRequests.followUpMode.error}
					</p>
				)}
			</div>
		</div>
	);

	const renderCompactionSection = () => (
		<div
			className="space-y-4"
			data-testid="command-surface-auto-compaction-settings"
		>
			<SectionHeader
				title="Auto-compaction"
				status={
					liveSessionState?.isCompacting ? (
						<span className="flex items-center gap-1.5 text-xs text-warning">
							<LoaderCircle className="h-3 w-3 animate-spin" /> Compacting
						</span>
					) : null
				}
			/>

			<ToggleRow
				label="Auto-compact"
				description="Automatically compact when context thresholds are crossed"
				checked={liveSessionState?.autoCompactionEnabled ?? false}
				onCheckedChange={(checked) =>
					void setAutoCompactionFromSurface(checked)
				}
				disabled={!liveSessionState || autoCompactionBusy}
				busy={autoCompactionBusy}
				testId="command-surface-toggle-auto-compaction"
			/>

			{settingsRequests.autoCompaction.error && (
				<p className="text-xs text-destructive">
					{settingsRequests.autoCompaction.error}
				</p>
			)}
			{settingsRequests.autoCompaction.result && (
				<p className="text-xs text-success">
					{settingsRequests.autoCompaction.result}
				</p>
			)}
		</div>
	);

	const renderRetrySection = () => (
		<div className="space-y-4" data-testid="command-surface-retry-settings">
			<SectionHeader
				title="Retry"
				status={
					liveSessionState?.retryInProgress ? (
						<span className="flex items-center gap-1.5 text-xs text-warning">
							<Radio className="h-3 w-3" /> Attempt{" "}
							{Math.max(1, liveSessionState.retryAttempt)}
						</span>
					) : null
				}
			/>

			<ToggleRow
				label="Auto-retry"
				description="Automatically retry on transient failures"
				checked={liveSessionState?.autoRetryEnabled ?? false}
				onCheckedChange={(checked) => void setAutoRetryFromSurface(checked)}
				disabled={!liveSessionState || autoRetryBusy}
				busy={autoRetryBusy}
				testId="command-surface-toggle-auto-retry"
			/>

			<p
				className="text-xs text-muted-foreground"
				data-testid="command-surface-auto-retry-state"
			>
				{autoRetryBusy
					? "Updating auto-retry…"
					: settingsRequests.autoRetry.error
						? settingsRequests.autoRetry.error
						: settingsRequests.autoRetry.result
							? settingsRequests.autoRetry.result
							: liveSessionState?.autoRetryEnabled
								? "Auto-retry enabled"
								: "Auto-retry disabled"}
			</p>

			{liveSessionState?.retryInProgress && (
				<div className="flex items-center justify-between rounded-lg border border-warning/20 bg-warning/5 px-4 py-3">
					<div>
						<div className="text-sm font-medium text-foreground">
							Retry in progress
						</div>
						<p className="text-xs text-muted-foreground">
							Attempt {Math.max(1, liveSessionState.retryAttempt)} is active
						</p>
					</div>
					<Button
						type="button"
						variant="destructive"
						size="sm"
						onClick={() => void abortRetryFromSurface()}
						disabled={abortRetryBusy}
						data-testid="command-surface-abort-retry"
						className="h-7 gap-1.5 text-xs"
					>
						{abortRetryBusy ? (
							<LoaderCircle className="h-3 w-3 animate-spin" />
						) : (
							<X className="h-3 w-3" />
						)}
						Abort
					</Button>
				</div>
			)}

			{settingsRequests.autoRetry.error && (
				<p className="text-xs text-destructive">
					{settingsRequests.autoRetry.error}
				</p>
			)}
			<p
				className="text-xs text-muted-foreground"
				data-testid="command-surface-abort-retry-state"
			>
				{abortRetryBusy
					? "Aborting retry…"
					: settingsRequests.abortRetry.error
						? settingsRequests.abortRetry.error
						: settingsRequests.abortRetry.result
							? settingsRequests.abortRetry.result
							: liveSessionState?.retryInProgress
								? "Retry can be aborted"
								: "No retry in progress"}
			</p>
			{settingsRequests.abortRetry.error && (
				<p className="text-xs text-destructive">
					{settingsRequests.abortRetry.error}
				</p>
			)}
		</div>
	);

	const renderRecoverySection = () => {
		const diag = recoveryDiagnostics;
		return (
			<div className="space-y-4" data-testid="command-surface-recovery">
				<div
					className="text-xs text-muted-foreground"
					data-testid="command-surface-recovery-state"
				>
					{recoveryBusy
						? "Loading recovery diagnostics…"
						: recovery.error
							? "Recovery diagnostics failed"
							: recovery.stale
								? "Recovery diagnostics stale"
								: recovery.loaded
									? "Recovery diagnostics loaded"
									: "Recovery diagnostics idle"}
				</div>
				<SectionHeader
					title="Recovery"
					status={
						diag ? (
							<StatusDot
								status={
									diag.summary.tone === "healthy"
										? "ok"
										: diag.summary.tone === "warning"
											? "warning"
											: "error"
								}
							/>
						) : null
					}
					action={
						<Button
							type="button"
							variant="ghost"
							size="sm"
							onClick={() => void loadRecoveryDiagnostics()}
							disabled={recoveryBusy}
							className="h-7 gap-1.5 text-xs"
						>
							<RefreshCw
								className={cn("h-3 w-3", recoveryBusy && "animate-spin")}
							/>
							Refresh
						</Button>
					}
				/>

				{recovery.error && (
					<div
						className="rounded-lg border border-destructive/20 bg-destructive/5 px-3 py-2.5 text-xs text-destructive"
						data-testid="command-surface-recovery-error"
					>
						{recovery.error}
					</div>
				)}

				{recoveryBusy && !diag && (
					<>
						<div className="flex items-center gap-2 py-6 text-xs text-muted-foreground">
							<LoaderCircle className="h-3.5 w-3.5 animate-spin" />
							Loading diagnostics…
						</div>
						<div
							className="flex flex-wrap gap-2 border-t border-border/50 pt-3"
							data-testid="command-surface-recovery-actions"
						>
							<Button
								type="button"
								variant="default"
								size="sm"
								onClick={() => void loadRecoveryDiagnostics()}
								data-testid="command-surface-recovery-action-refresh_diagnostics"
								className="h-7 text-xs"
							>
								Refresh diagnostics
							</Button>
						</div>
					</>
				)}

				{diag?.status === "unavailable" && !recovery.error && (
					<>
						<div
							className="space-y-1 rounded-lg border border-border/50 bg-card/50 px-4 py-3"
							data-testid="command-surface-recovery-summary"
						>
							<div className="text-sm font-medium text-foreground">
								{diag.summary.label}
							</div>
							<p className="text-xs text-muted-foreground">
								{diag.summary.detail}
							</p>
						</div>
						<div
							className="flex flex-wrap gap-2 border-t border-border/50 pt-3"
							data-testid="command-surface-recovery-actions"
						>
							<Button
								type="button"
								variant="default"
								size="sm"
								onClick={() => void loadRecoveryDiagnostics()}
								data-testid="command-surface-recovery-action-refresh_diagnostics"
								className="h-7 text-xs"
							>
								Refresh diagnostics
							</Button>
						</div>
					</>
				)}

				{diag && diag.status !== "unavailable" && (
					<>
						<div
							className="space-y-1"
							data-testid="command-surface-recovery-summary"
						>
							<div className="text-sm font-medium text-foreground">
								{diag.summary.label}
							</div>
							<p className="text-xs text-muted-foreground">
								{diag.summary.detail}
							</p>
						</div>

						{/* Summary stats */}
						<div className="grid grid-cols-2 gap-2">
							<div className="rounded-lg border border-border/50 bg-card/50 px-3 py-2.5">
								<div className="text-[10px] uppercase tracking-wider text-muted-foreground">
									Validation
								</div>
								<div className="mt-1 text-lg font-semibold tabular-nums text-foreground">
									{diag.summary.validationCount}
								</div>
							</div>
							<div className="rounded-lg border border-border/50 bg-card/50 px-3 py-2.5">
								<div className="text-[10px] uppercase tracking-wider text-muted-foreground">
									Doctor
								</div>
								<div className="mt-1 text-lg font-semibold tabular-nums text-foreground">
									{diag.summary.doctorIssueCount}
								</div>
							</div>
						</div>

						{/* Status badges */}
						<div className="flex flex-wrap gap-1.5">
							{diag.summary.retryInProgress && (
								<Badge variant="default" className="text-[10px]">
									Retry {Math.max(1, diag.summary.retryAttempt)}
								</Badge>
							)}
							{diag.summary.compactionActive && (
								<Badge variant="default" className="text-[10px]">
									Compacting
								</Badge>
							)}
							{diag.summary.lastFailurePhase && (
								<Badge variant="destructive" className="text-[10px]">
									Phase {diag.summary.lastFailurePhase}
								</Badge>
							)}
							{recovery.stale && (
								<Badge variant="outline" className="text-[10px]">
									Stale
								</Badge>
							)}
						</div>

						{/* Last failure */}
						{diag.bridge.lastFailure && (
							<div
								className="rounded-lg border border-destructive/20 bg-destructive/5 px-3 py-2.5"
								data-testid="command-surface-recovery-last-failure"
							>
								<div className="text-xs font-medium text-destructive">
									Last failure
								</div>
								<p className="mt-1 text-xs text-destructive/80">
									{diag.bridge.lastFailure.message}
								</p>
								<div className="mt-1.5 flex gap-3 text-[10px] text-destructive/60">
									<span>Phase: {diag.bridge.lastFailure.phase}</span>
									<span>{formatRelativeTime(diag.bridge.lastFailure.at)}</span>
								</div>
							</div>
						)}

						{/* Validation issues */}
						{diag.validation.topIssues.length > 0 && (
							<div className="space-y-2">
								<div className="text-xs font-medium text-muted-foreground">
									Validation issues
								</div>
								{diag.validation.topIssues.map((issue) => (
									<div
										key={`${issue.code}:${issue.file ?? issue.message}`}
										className="rounded-lg border border-border/50 bg-card/50 px-3 py-2"
									>
										<div className="flex items-center gap-2">
											<Badge
												variant={
													issue.severity === "error" ? "destructive" : "outline"
												}
												className="text-[10px]"
											>
												{issue.code}
											</Badge>
										</div>
										<p className="mt-1 text-xs text-muted-foreground">
											{issue.message}
										</p>
										{issue.suggestion && (
											<p className="mt-0.5 text-[11px] text-muted-foreground">
												→ {issue.suggestion}
											</p>
										)}
									</div>
								))}
							</div>
						)}

						{/* Doctor issues */}
						{diag.doctor.topIssues.length > 0 && (
							<div className="space-y-2">
								<div className="text-xs font-medium text-muted-foreground">
									Doctor issues
								</div>
								{diag.doctor.topIssues.map((issue) => (
									<div
										key={`${issue.code}:${issue.unitId ?? issue.message}`}
										className="rounded-lg border border-border/50 bg-card/50 px-3 py-2"
									>
										<Badge variant="outline" className="text-[10px]">
											{issue.code}
										</Badge>
										<p className="mt-1 text-xs text-muted-foreground">
											{issue.message}
										</p>
									</div>
								))}
							</div>
						)}

						{/* Interrupted run */}
						{diag.interruptedRun.detected && (
							<div
								className="rounded-lg border border-warning/20 bg-warning/5 px-3 py-2.5"
								data-testid="command-surface-recovery-interrupted-run"
							>
								<div className="text-xs font-medium text-warning">
									Interrupted run detected
								</div>
								<div className="mt-1 space-y-1 text-xs text-warning/80">
									<p>Available: yes</p>
									<p>Detected: yes</p>
									<p>{diag.interruptedRun.detail}</p>
								</div>
								<div className="mt-1.5 grid gap-1 text-[10px] text-warning/60">
									<span>
										Tool calls: {diag.interruptedRun.counts.toolCalls}
									</span>
									<span>
										Files written: {diag.interruptedRun.counts.filesWritten}
									</span>
									<span>
										Commands: {diag.interruptedRun.counts.commandsRun}
									</span>
									<span>Errors: {diag.interruptedRun.counts.errors}</span>
									<span>
										Last forensic error:{" "}
										{diag.interruptedRun.lastError ?? "[redacted]"}
									</span>
								</div>
							</div>
						)}

						{/* Actions */}
						<div
							className="flex flex-wrap gap-2 border-t border-border/50 pt-3"
							data-testid="command-surface-recovery-actions"
						>
							{diag.actions.browser.length > 0 ? (
								diag.actions.browser.map((action) => (
									<Button
										key={action.id}
										type="button"
										variant={
											action.emphasis === "danger"
												? "destructive"
												: action.emphasis === "primary"
													? "default"
													: "outline"
										}
										size="sm"
										onClick={() => triggerRecoveryBrowserAction(action.id)}
										data-testid={`command-surface-recovery-action-${action.id}`}
										className="h-7 text-xs"
									>
										{action.label}
									</Button>
								))
							) : (
								<span className="text-xs text-muted-foreground">
									{recoveryBusy
										? "Loading recovery actions…"
										: "No browser recovery actions available."}
								</span>
							)}
						</div>

						{diag.actions.commands.length > 0 && (
							<div
								className="space-y-2 border-t border-border/50 pt-3"
								data-testid="command-surface-recovery-commands"
							>
								<div className="text-xs font-medium text-muted-foreground">
									Suggested commands
								</div>
								{diag.actions.commands.map((command) => (
									<div
										key={command.command}
										className="rounded-lg border border-border/50 bg-card/50 px-3 py-2 text-xs"
									>
										<div className="font-mono text-foreground">
											{command.command}
										</div>
										<p className="mt-1 text-muted-foreground">
											{command.label}
										</p>
									</div>
								))}
							</div>
						)}
					</>
				)}
			</div>
		);
	};

	const gitFileStatusColor = (status: string) => {
		switch (status) {
			case "M":
				return "text-warning bg-warning/10";
			case "A":
				return "text-success bg-success/10";
			case "D":
				return "text-destructive bg-destructive/10";
			case "R":
				return "text-info bg-info/10";
			case "C":
				return "text-info bg-info/10";
			case "U":
				return "text-destructive bg-destructive/10";
			case "?":
				return "text-muted-foreground bg-foreground/5";
			default:
				return "text-muted-foreground bg-foreground/5";
		}
	};

	const renderGitSection = () => {
		const result = gitSummary.result;
		return (
			<div className="space-y-5" data-testid="command-surface-git-summary">
				<div
					className="text-xs text-muted-foreground"
					data-testid="command-surface-git-state"
				>
					{gitSummaryBusy
						? "Loading git summary…"
						: gitSummary.error
							? "Git summary failed"
							: result?.kind === "not_repo"
								? "No git repository"
								: result?.kind === "repo"
									? `Repo ready${result.hasChanges ? " — changes detected" : " — clean"}`
									: "Git summary idle"}
				</div>

				{gitSummaryBusy && !result && (
					<div className="flex flex-col items-center justify-center gap-3 py-16">
						<LoaderCircle className="h-5 w-5 animate-spin text-muted-foreground" />
						<span className="text-xs text-muted-foreground">
							Loading repo state…
						</span>
					</div>
				)}

				{gitSummary.error && (
					<div
						className="rounded-lg border border-destructive/20 bg-destructive/5 px-4 py-3 text-xs text-destructive"
						data-testid="command-surface-git-error"
					>
						{gitSummary.error}
					</div>
				)}

				{!gitSummary.error && result?.kind === "not_repo" && (
					<div
						className="flex flex-col items-center gap-3 py-16 text-center"
						data-testid="command-surface-git-not-repo"
					>
						<div className="flex h-10 w-10 items-center justify-center rounded-full border border-border/50 bg-card/50">
							<GitBranch className="h-4.5 w-4.5 text-muted-foreground" />
						</div>
						<div>
							<div className="text-sm font-medium text-foreground">
								No Git repository
							</div>
							<p className="mt-1 text-xs text-muted-foreground">
								{result.message}
							</p>
						</div>
					</div>
				)}

				{!gitSummary.error && result?.kind === "repo" && (
					<>
						{/* Repo info bar */}
						<div className="flex items-center gap-2 text-xs text-muted-foreground">
							<span className="font-mono">
								{shortenPath(result.project.repoRoot, 3)}
							</span>
							{result.project.repoRelativePath && (
								<>
									<ChevronRight className="h-3 w-3 text-muted-foreground" />
									<span className="font-mono">
										{result.project.repoRelativePath}
									</span>
								</>
							)}
						</div>

						{/* Counts row */}
						<div
							className="grid grid-cols-4 gap-1.5"
							data-testid="command-surface-git-counts"
						>
							{[
								{
									label: "Staged",
									count: result.counts.staged,
									active: result.counts.staged > 0,
									color: "text-success",
								},
								{
									label: "Modified",
									count: result.counts.dirty,
									active: result.counts.dirty > 0,
									color: "text-warning",
								},
								{
									label: "Untracked",
									count: result.counts.untracked,
									active: result.counts.untracked > 0,
									color: "text-muted-foreground",
								},
								{
									label: "Conflicts",
									count: result.counts.conflicts,
									active: result.counts.conflicts > 0,
									color: "text-destructive",
								},
							].map(({ label, count, active, color }) => (
								<div
									key={label}
									className={cn(
										"rounded-md border px-2 py-2 text-center transition-colors",
										active
											? "border-border bg-card"
											: "border-border/50 bg-card/50",
									)}
								>
									<div
										className={cn(
											"text-base font-semibold tabular-nums leading-none",
											active ? color : "text-muted-foreground",
										)}
									>
										{count}
									</div>
									<div
										className={cn(
											"mt-1.5 text-[10px] leading-none",
											active
												? "text-muted-foreground"
												: "text-muted-foreground",
										)}
									>
										{label}
									</div>
								</div>
							))}
						</div>

						{/* Changed files */}
						{result.changedFiles.length > 0 && (
							<div data-testid="command-surface-git-files">
								<div className="mb-2 flex items-center justify-between">
									<span className="text-[11px] font-medium uppercase tracking-[0.06em] text-muted-foreground">
										Changes
									</span>
									<span className="text-[11px] tabular-nums text-muted-foreground">
										{result.changedFiles.length}
										{result.truncatedFileCount > 0
											? `+${result.truncatedFileCount}`
											: ""}{" "}
										files
									</span>
								</div>
								<div className="space-y-px rounded-lg border border-border/50 bg-card/50 overflow-hidden">
									{result.changedFiles.map((file) => (
										<div
											key={`${file.status}:${file.repoPath}`}
											className="group flex items-center gap-2.5 px-3 py-2 transition-colors hover:bg-foreground/[0.03]"
										>
											<span
												className={cn(
													"flex h-5 w-5 shrink-0 items-center justify-center rounded text-[10px] font-semibold",
													gitFileStatusColor(file.status),
												)}
											>
												{file.status}
											</span>
											<span className="min-w-0 flex-1 truncate font-mono text-[11px] text-foreground/80">
												{file.path}
											</span>
											{file.conflict && (
												<span className="shrink-0 rounded bg-destructive/15 px-1.5 py-0.5 text-[9px] font-semibold uppercase tracking-wider text-destructive">
													conflict
												</span>
											)}
										</div>
									))}
								</div>
								{result.truncatedFileCount > 0 && (
									<p className="mt-1.5 text-center text-[11px] text-muted-foreground">
										+{result.truncatedFileCount} more files not shown
									</p>
								)}
							</div>
						)}

						{result.changedFiles.length === 0 && (
							<div className="flex flex-col items-center gap-2 py-8 text-center">
								<Check className="h-4 w-4 text-success/60" />
								<span className="text-xs text-muted-foreground">
									Working tree clean
								</span>
							</div>
						)}
					</>
				)}
			</div>
		);
	};

	const renderSessionBrowserSection = (mode: "resume" | "name") => {
		const renameMode = mode === "name";
		const selectedSessionPath = renameMode
			? selectedNameTarget?.sessionPath
			: selectedResumeTarget?.sessionPath;

		return (
			<div
				className="space-y-4"
				data-testid={
					renameMode ? "command-surface-name" : "command-surface-resume"
				}
			>
				<SectionHeader
					title={renameMode ? "Rename" : "Resume"}
					status={
						!renameMode ? (
							<span className="text-xs text-muted-foreground">
								{currentSessionLabel ?? "pending"}
							</span>
						) : null
					}
				/>

				{/* Search bar */}
				<div className="flex gap-2">
					<div className="relative flex-1">
						<Search className="absolute left-3 top-1/2 h-3.5 w-3.5 -translate-y-1/2 text-muted-foreground" />
						<Input
							value={sessionBrowser.query}
							onChange={(e) =>
								updateSessionBrowserState({ query: e.target.value })
							}
							onKeyDown={(e) => {
								if (e.key === "Enter") {
									e.preventDefault();
									void loadSessionBrowser();
								}
							}}
							placeholder="Search sessions…"
							className="h-8 pl-9 text-xs"
							disabled={sessionBrowserBusy}
							data-testid="command-surface-session-browser-query"
						/>
					</div>
					<Button
						type="button"
						variant="ghost"
						size="sm"
						onClick={() => void loadSessionBrowser()}
						disabled={sessionBrowserBusy}
						className="h-8 w-8 p-0"
					>
						<RefreshCw
							className={cn(
								"h-3.5 w-3.5",
								sessionBrowserBusy && "animate-spin",
							)}
						/>
					</Button>
				</div>

				{/* Sort/filter controls */}
				<div className="flex items-center gap-2">
					<SegmentedControl
						options={[
							{ value: "threaded" as const, label: "Threaded" },
							{ value: "recent" as const, label: "Recent" },
							{ value: "relevance" as const, label: "Relevance" },
						]}
						value={sessionBrowser.sortMode}
						onChange={(v) => {
							updateSessionBrowserState({ sortMode: v });
							void loadSessionBrowser({ sortMode: v });
						}}
						disabled={sessionBrowserBusy}
					/>
					<button
						type="button"
						className={cn(
							"rounded-md border border-border px-2.5 py-1.5 text-[11px] font-medium transition-colors",
							sessionBrowser.nameFilter === "named"
								? "bg-foreground/10 text-foreground"
								: "text-muted-foreground hover:text-foreground",
						)}
						onClick={() => {
							const next =
								sessionBrowser.nameFilter === "named" ? "all" : "named";
							updateSessionBrowserState({ nameFilter: next });
							void loadSessionBrowser({ nameFilter: next });
						}}
						disabled={sessionBrowserBusy}
					>
						Named
					</button>
				</div>

				{sessionBrowser.error && (
					<div className="rounded-lg border border-destructive/20 bg-destructive/5 px-3 py-2.5 text-xs text-destructive">
						{sessionBrowser.error}
					</div>
				)}

				{/* Session list */}
				{sessionBrowserBusy && sessionBrowser.sessions.length === 0 ? (
					<div className="flex items-center gap-2 py-6 text-xs text-muted-foreground">
						<LoaderCircle className="h-3.5 w-3.5 animate-spin" />
						Loading sessions…
					</div>
				) : sessionBrowser.sessions.length > 0 ? (
					<div
						className="space-y-1"
						data-testid="command-surface-session-browser-results"
					>
						{sessionBrowser.sessions.map((session) => {
							const selected = session.path === selectedSessionPath;
							return (
								<button
									key={session.path}
									type="button"
									className={cn(
										"flex w-full items-start gap-3 rounded-lg px-3 py-2.5 text-left transition-colors",
										selected
											? "bg-foreground/[0.07]"
											: "hover:bg-foreground/[0.03]",
									)}
									style={{ paddingLeft: `${0.75 + session.depth * 0.6}rem` }}
									onClick={() =>
										renameMode
											? selectCommandSurfaceTarget({
													kind: "name",
													sessionPath: session.path,
													name:
														selectedNameTarget?.sessionPath === session.path
															? (selectedNameTarget?.name ?? session.name ?? "")
															: (session.name ?? ""),
												})
											: selectCommandSurfaceTarget({
													kind: "resume",
													sessionPath: session.path,
												})
									}
									data-testid={`command-surface-session-browser-item-${session.id}`}
								>
									<div
										className={cn(
											"mt-1 flex h-4 w-4 shrink-0 items-center justify-center rounded-full border transition-colors",
											selected
												? "border-foreground bg-foreground"
												: "border-foreground/25",
										)}
									>
										{selected && (
											<Check className="h-2.5 w-2.5 text-background" />
										)}
									</div>
									<div className="min-w-0 flex-1">
										<div className="flex items-center gap-2">
											<span className="truncate text-sm font-medium text-foreground">
												{session.name || session.firstMessage || session.id}
											</span>
											{session.isActive && <StatusDot status="ok" />}
										</div>
										{session.name && session.firstMessage && (
											<p className="mt-0.5 truncate text-xs text-muted-foreground">
												{session.firstMessage}
											</p>
										)}
										<div className="mt-0.5 flex gap-3 text-[11px] text-muted-foreground">
											<span>{session.messageCount} msgs</span>
											<span>{formatRelativeTime(session.modifiedAt)}</span>
										</div>
									</div>
								</button>
							);
						})}
					</div>
				) : (
					<p className="py-4 text-center text-xs text-muted-foreground">
						No sessions matched.
					</p>
				)}

				{sessionBrowser.loaded && (
					<p
						className="text-[11px] text-muted-foreground"
						data-testid="command-surface-session-browser-meta"
					>
						Current-project sessions · {sessionBrowser.returnedSessions} of{" "}
						{sessionBrowser.totalSessions} · {sessionBrowser.sortMode} ·{" "}
						{sessionBrowser.nameFilter}
					</p>
				)}

				{/* Rename controls */}
				{renameMode && (
					<div className="space-y-3 border-t border-border/50 pt-3">
						<div className="flex gap-2">
							<Input
								value={selectedNameTarget?.name ?? ""}
								onChange={(e) =>
									selectCommandSurfaceTarget({
										kind: "name",
										sessionPath: selectedNameTarget?.sessionPath,
										name: e.target.value,
									})
								}
								placeholder="Session name"
								className="h-8 flex-1 text-xs"
								disabled={!selectedNameTarget?.sessionPath || renameBusy}
								data-testid="command-surface-rename-input"
							/>
							<Button
								type="button"
								size="sm"
								onClick={() =>
									selectedNameTarget?.sessionPath &&
									void renameSessionFromSurface(
										selectedNameTarget.sessionPath,
										selectedNameTarget.name,
									)
								}
								disabled={
									!selectedNameTarget?.sessionPath ||
									!selectedNameTarget.name.trim() ||
									renameBusy
								}
								data-testid="command-surface-apply-rename"
								className="h-8 gap-1.5"
							>
								{renameBusy ? (
									<LoaderCircle className="h-3.5 w-3.5 animate-spin" />
								) : (
									<PencilLine className="h-3.5 w-3.5" />
								)}
								Rename
							</Button>
						</div>
						{commandSurface.renameRequest.error && (
							<p className="text-xs text-destructive">
								{commandSurface.renameRequest.error}
							</p>
						)}
						{commandSurface.renameRequest.result && (
							<p className="text-xs text-success">
								{commandSurface.renameRequest.result}
							</p>
						)}
					</div>
				)}

				{/* Resume controls */}
				{!renameMode && (
					<div className="flex items-center justify-between border-t border-border/50 pt-3">
						<span
							className="text-xs text-muted-foreground"
							data-testid="command-surface-resume-state"
						>
							{resumeBusy
								? "Switching…"
								: (commandSurface.resumeRequest.error ??
									commandSurface.resumeRequest.result ??
									"Select a session")}
						</span>
						<Button
							type="button"
							size="sm"
							onClick={() =>
								selectedResumeTarget?.sessionPath &&
								void switchSessionFromSurface(selectedResumeTarget.sessionPath)
							}
							disabled={!selectedResumeTarget?.sessionPath || resumeBusy}
							data-testid="command-surface-apply-resume"
							className="h-8 gap-1.5"
						>
							{resumeBusy ? (
								<LoaderCircle className="h-3.5 w-3.5 animate-spin" />
							) : (
								<ArrowRightLeft className="h-3.5 w-3.5" />
							)}
							Switch
						</Button>
					</div>
				)}
			</div>
		);
	};

	const renderForkSection = () => (
		<div className="space-y-4" data-testid="command-surface-fork">
			<SectionHeader
				title="Fork"
				action={
					<Button
						type="button"
						variant="ghost"
						size="sm"
						onClick={() => void loadForkMessages()}
						disabled={forkBusy}
						className="h-7 gap-1.5 text-xs"
					>
						<RefreshCw
							className={cn(
								"h-3 w-3",
								commandSurface.pendingAction === "load_fork_messages" &&
									"animate-spin",
							)}
						/>
						Refresh
					</Button>
				}
			/>

			{forkBusy && commandSurface.forkMessages.length === 0 ? (
				<div className="flex items-center gap-2 py-6 text-xs text-muted-foreground">
					<LoaderCircle className="h-3.5 w-3.5 animate-spin" />
					Loading fork points…
				</div>
			) : commandSurface.forkMessages.length > 0 ? (
				<div className="space-y-1">
					{commandSurface.forkMessages.map((message) => {
						const selected = selectedForkTarget?.entryId === message.entryId;
						return (
							<button
								key={message.entryId}
								type="button"
								className={cn(
									"flex w-full items-start gap-3 rounded-lg px-3 py-2.5 text-left transition-colors",
									selected
										? "bg-foreground/[0.07]"
										: "hover:bg-foreground/[0.03]",
								)}
								onClick={() =>
									selectCommandSurfaceTarget({
										kind: "fork",
										entryId: message.entryId,
									})
								}
							>
								<div
									className={cn(
										"mt-1 flex h-4 w-4 shrink-0 items-center justify-center rounded-full border transition-colors",
										selected
											? "border-foreground bg-foreground"
											: "border-foreground/25",
									)}
								>
									{selected && (
										<Check className="h-2.5 w-2.5 text-background" />
									)}
								</div>
								<div className="min-w-0 flex-1">
									<div className="font-mono text-[10px] text-muted-foreground">
										{message.entryId}
									</div>
									<p className="mt-0.5 text-sm text-foreground">
										{message.text}
									</p>
								</div>
							</button>
						);
					})}
				</div>
			) : (
				<p className="py-4 text-center text-xs text-muted-foreground">
					No fork points available yet.
				</p>
			)}

			<div className="flex justify-end border-t border-border/50 pt-3">
				<Button
					type="button"
					size="sm"
					onClick={() =>
						selectedForkTarget?.entryId &&
						void forkSessionFromSurface(selectedForkTarget.entryId)
					}
					disabled={
						!selectedForkTarget?.entryId ||
						commandSurface.pendingAction === "fork_session"
					}
					data-testid="command-surface-apply-fork"
					className="h-8 gap-1.5"
				>
					{commandSurface.pendingAction === "fork_session" ? (
						<LoaderCircle className="h-3.5 w-3.5 animate-spin" />
					) : (
						<GitBranch className="h-3.5 w-3.5" />
					)}
					Create fork
				</Button>
			</div>
		</div>
	);

	const renderSessionSection = () => (
		<div className="space-y-4" data-testid="command-surface-session">
			<SectionHeader
				title="Session"
				status={
					<span className="text-xs text-muted-foreground">
						{currentSessionLabel ?? "pending"}
					</span>
				}
				action={
					<Button
						type="button"
						variant="ghost"
						size="sm"
						onClick={() => void loadSessionStats()}
						disabled={sessionBusy}
						className="h-7 gap-1.5 text-xs"
					>
						<RefreshCw
							className={cn(
								"h-3 w-3",
								commandSurface.pendingAction === "load_session_stats" &&
									"animate-spin",
							)}
						/>
						Refresh
					</Button>
				}
			/>

			{commandSurface.sessionStats ? (
				<>
					{/* Token & cost grid */}
					<div className="grid grid-cols-3 gap-2">
						{[
							{
								label: "Input",
								value: formatTokens(commandSurface.sessionStats.tokens.input),
							},
							{
								label: "Output",
								value: formatTokens(commandSurface.sessionStats.tokens.output),
							},
							{
								label: "Total",
								value: formatTokens(commandSurface.sessionStats.tokens.total),
							},
						].map(({ label, value }) => (
							<div
								key={label}
								className="rounded-lg border border-border/50 bg-card/50 px-3 py-2.5 text-center"
							>
								<div className="text-[10px] uppercase tracking-wider text-muted-foreground">
									{label}
								</div>
								<div className="mt-1 text-sm font-semibold tabular-nums text-foreground">
									{value}
								</div>
							</div>
						))}
					</div>

					{/* Message breakdown */}
					<div className="divide-y divide-border/30 rounded-lg border border-border/50 bg-card/50">
						<div className="px-4 py-2">
							<KV label="User messages">
								{commandSurface.sessionStats.userMessages}
							</KV>
							<KV label="Assistant messages">
								{commandSurface.sessionStats.assistantMessages}
							</KV>
							<KV label="Tool calls">
								{commandSurface.sessionStats.toolCalls}
							</KV>
							<KV label="Tool results">
								{commandSurface.sessionStats.toolResults}
							</KV>
						</div>
						<div className="px-4 py-2">
							<KV label="Total messages">
								{commandSurface.sessionStats.totalMessages}
							</KV>
							<KV label="Cost">
								{formatCost(commandSurface.sessionStats.cost)}
							</KV>
							{commandSurface.sessionStats.tokens.cacheRead > 0 && (
								<KV label="Cache read">
									{formatTokens(commandSurface.sessionStats.tokens.cacheRead)}
								</KV>
							)}
						</div>
					</div>
				</>
			) : (
				<p className="py-4 text-center text-xs text-muted-foreground">
					Refresh to load session stats.
				</p>
			)}

			{/* Export */}
			<div className="space-y-3 border-t border-border/50 pt-3">
				<div className="text-xs font-medium text-muted-foreground">Export</div>
				<div className="flex gap-2">
					<Input
						value={selectedSessionTarget?.outputPath ?? ""}
						onChange={(e) =>
							selectCommandSurfaceTarget({
								kind: "session",
								outputPath: e.target.value,
							})
						}
						placeholder="Output path (optional)"
						className="h-8 flex-1 text-xs"
						disabled={commandSurface.pendingAction === "export_html"}
						data-testid="command-surface-export-path"
					/>
					<Button
						type="button"
						size="sm"
						onClick={() =>
							void exportSessionFromSurface(selectedSessionTarget?.outputPath)
						}
						disabled={commandSurface.pendingAction === "export_html"}
						data-testid="command-surface-export-session"
						className="h-8 gap-1.5"
					>
						{commandSurface.pendingAction === "export_html" ? (
							<LoaderCircle className="h-3.5 w-3.5 animate-spin" />
						) : (
							<Download className="h-3.5 w-3.5" />
						)}
						Export HTML
					</Button>
				</div>
			</div>
		</div>
	);

	const renderCompactSection = () => (
		<div className="space-y-4" data-testid="command-surface-compact">
			<SectionHeader
				title="Manual compact"
				status={
					compactBusy ? (
						<span className="flex items-center gap-1.5 text-xs text-warning">
							<LoaderCircle className="h-3 w-3 animate-spin" /> Working
						</span>
					) : null
				}
			/>

			<div className="space-y-2">
				<label
					className="text-xs font-medium text-muted-foreground"
					htmlFor="command-surface-compact-instructions"
				>
					Custom instructions
				</label>
				<Textarea
					id="command-surface-compact-instructions"
					data-testid="command-surface-compact-instructions"
					value={selectedCompactTarget?.customInstructions ?? ""}
					onChange={(e) =>
						selectCommandSurfaceTarget({
							kind: "compact",
							customInstructions: e.target.value,
						})
					}
					placeholder="Tell compaction what to preserve or emphasize…"
					rows={4}
					disabled={compactBusy}
					className="text-xs"
				/>
			</div>

			<div className="flex justify-end">
				<Button
					type="button"
					size="sm"
					onClick={() =>
						void compactSessionFromSurface(
							selectedCompactTarget?.customInstructions,
						)
					}
					disabled={compactBusy}
					data-testid="command-surface-apply-compact"
					className="h-8 gap-1.5"
				>
					{compactBusy ? (
						<LoaderCircle className="h-3.5 w-3.5 animate-spin" />
					) : (
						<Archive className="h-3.5 w-3.5" />
					)}
					Compact now
				</Button>
			</div>

			{commandSurface.lastCompaction && (
				<div className="space-y-2 rounded-lg border border-border/50 bg-card/50 px-4 py-3">
					<div className="flex items-center justify-between">
						<span className="text-xs font-medium text-muted-foreground">
							Last compaction
						</span>
						<span className="text-[11px] tabular-nums text-muted-foreground">
							{formatTokens(commandSurface.lastCompaction.tokensBefore)} before
						</span>
					</div>
					<p className="whitespace-pre-wrap text-xs text-foreground">
						{commandSurface.lastCompaction.summary}
					</p>
					<p className="text-[11px] text-muted-foreground">
						First kept: {commandSurface.lastCompaction.firstKeptEntryId}
					</p>
				</div>
			)}
		</div>
	);

	const renderAuthSection = () => {
		if (!onboarding) return null;
		return (
			<div className="space-y-4" data-testid="command-surface-auth">
				<SectionHeader
					title="Auth"
					status={
						<span className="text-xs text-muted-foreground">
							{selectedAuthIntent === "login"
								? "Login"
								: selectedAuthIntent === "logout"
									? "Logout"
									: "Manage"}
						</span>
					}
				/>

				{/* Provider list */}
				<div className="space-y-1">
					{onboarding.required.providers.map((provider) => {
						const selected = provider.id === selectedAuthProvider?.id;
						return (
							<button
								key={provider.id}
								type="button"
								className={cn(
									"flex w-full items-center gap-3 rounded-lg px-3 py-2.5 text-left transition-colors",
									selected
										? "bg-foreground/[0.07]"
										: "hover:bg-foreground/[0.03]",
								)}
								onClick={() =>
									selectCommandSurfaceTarget({
										kind: "auth",
										providerId: provider.id,
										intent: selectedAuthIntent,
									})
								}
							>
								<div
									className={cn(
										"flex h-4 w-4 shrink-0 items-center justify-center rounded-full border transition-colors",
										selected
											? "border-foreground bg-foreground"
											: "border-foreground/25",
									)}
								>
									{selected && (
										<Check className="h-2.5 w-2.5 text-background" />
									)}
								</div>
								<div className="min-w-0 flex-1">
									<div className="flex items-center gap-2">
										<span className="text-sm font-medium text-foreground">
											{provider.label}
										</span>
										{provider.configured && <StatusDot status="ok" />}
									</div>
									<span className="text-xs text-muted-foreground">
										{provider.configured
											? `via ${provider.configuredVia}`
											: "Not configured"}
									</span>
								</div>
								{provider.recommended && (
									<span className="rounded bg-foreground/10 px-1.5 py-0.5 text-[10px] font-medium text-muted-foreground">
										Recommended
									</span>
								)}
							</button>
						);
					})}
				</div>

				{/* Selected provider details */}
				{selectedAuthProvider && (
					<div className="space-y-4 border-t border-border/50 pt-3">
						<div className="flex items-center justify-between">
							<div>
								<div className="text-sm font-medium text-foreground">
									{selectedAuthProvider.label}
								</div>
								<span className="text-xs text-muted-foreground">
									{selectedAuthProvider.configuredVia ?? "Not configured"}
								</span>
							</div>
						</div>

						{/* API key form */}
						{selectedAuthProvider.supports.apiKey && (
							<form
								className="space-y-3"
								onSubmit={(e) => {
									e.preventDefault();
									if (!selectedProviderApiKey.trim()) return;
									void saveApiKeyFromSurface(
										selectedAuthProvider.id,
										selectedProviderApiKey,
									);
								}}
							>
								<div className="flex gap-2">
									<Input
										type="password"
										autoComplete="off"
										value={selectedProviderApiKey}
										onChange={(e) =>
											setApiKeys((prev) => ({
												...prev,
												[selectedAuthProvider.id]: e.target.value,
											}))
										}
										placeholder="Paste API key"
										className="h-8 flex-1 text-xs"
										disabled={authBusy}
										data-testid="command-surface-api-key-input"
									/>
									<Button
										type="submit"
										size="sm"
										disabled={!selectedProviderApiKey.trim() || authBusy}
										data-testid="command-surface-save-api-key"
										className="h-8 gap-1.5"
									>
										{commandSurface.pendingAction === "save_api_key" ? (
											<LoaderCircle className="h-3.5 w-3.5 animate-spin" />
										) : (
											<KeyRound className="h-3.5 w-3.5" />
										)}
										Save
									</Button>
								</div>
							</form>
						)}

						{/* OAuth / sign-in buttons */}
						<div className="flex flex-wrap gap-2">
							{selectedAuthProvider.supports.oauth &&
								selectedAuthProvider.supports.oauthAvailable && (
									<Button
										type="button"
										variant="outline"
										size="sm"
										disabled={authBusy}
										onClick={() =>
											void startProviderFlowFromSurface(selectedAuthProvider.id)
										}
										data-testid="command-surface-start-provider-flow"
										className="h-8 gap-1.5 text-xs"
									>
										{commandSurface.pendingAction === "start_provider_flow" ? (
											<LoaderCircle className="h-3.5 w-3.5 animate-spin" />
										) : (
											<LogIn className="h-3.5 w-3.5" />
										)}
										Browser sign-in
									</Button>
								)}
							<Button
								type="button"
								variant="ghost"
								size="sm"
								disabled={authBusy}
								onClick={() =>
									void logoutProviderFromSurface(selectedAuthProvider.id)
								}
								data-testid="command-surface-logout-provider"
								className="h-8 gap-1.5 text-xs text-destructive hover:text-destructive"
							>
								{commandSurface.pendingAction === "logout_provider" ? (
									<LoaderCircle className="h-3.5 w-3.5 animate-spin" />
								) : (
									<LogOut className="h-3.5 w-3.5" />
								)}
								Logout
							</Button>
						</div>

						{/* Active OAuth flow */}
						{activeFlow &&
							activeFlow.providerId === selectedAuthProvider.id && (
								<div
									className="space-y-3 rounded-lg border border-foreground/10 bg-foreground/[0.03] px-4 py-3"
									data-testid="command-surface-active-flow"
								>
									<div className="flex items-center gap-2 text-xs">
										<Badge variant="outline" className="text-[10px]">
											{activeFlow.status.replaceAll("_", " ")}
										</Badge>
										<span className="text-muted-foreground">
											{new Date(activeFlow.updatedAt).toLocaleTimeString()}
										</span>
									</div>

									{activeFlow.auth?.instructions && (
										<p className="text-xs text-muted-foreground">
											{activeFlow.auth.instructions}
										</p>
									)}

									{activeFlow.auth?.url && (
										<Button
											asChild
											variant="outline"
											size="sm"
											className="h-7 gap-1.5 text-xs"
											data-testid="command-surface-open-auth-url"
										>
											<a
												href={activeFlow.auth.url}
												target="_blank"
												rel="noreferrer"
											>
												<ExternalLink className="h-3 w-3" />
												Open sign-in page
											</a>
										</Button>
									)}

									{activeFlow.progress.length > 0 && (
										<div className="space-y-1">
											{activeFlow.progress.map((message, index) => (
												<div
													key={`${activeFlow.flowId}-${index}`}
													className="rounded-md border border-border/50 bg-card/50 px-2.5 py-1.5 text-xs text-muted-foreground"
												>
													{message}
												</div>
											))}
										</div>
									)}

									{activeFlow.prompt && (
										<form
											className="space-y-2"
											onSubmit={(e) => {
												e.preventDefault();
												if (!activeFlow.prompt?.allowEmpty && !flowInput.trim())
													return;
												void submitProviderFlowInputFromSurface(
													activeFlow.flowId,
													flowInput,
												);
											}}
										>
											<Input
												value={flowInput}
												onChange={(e) => setFlowInput(e.target.value)}
												placeholder={
													activeFlow.prompt.placeholder || "Enter value"
												}
												className="h-8 text-xs"
												disabled={authBusy}
												data-testid="command-surface-flow-input"
											/>
											<p className="text-[11px] text-muted-foreground">
												{activeFlow.prompt.message}
											</p>
											<div className="flex gap-2">
												<Button
													type="submit"
													size="sm"
													disabled={
														authBusy ||
														(!activeFlow.prompt.allowEmpty && !flowInput.trim())
													}
													className="h-7 gap-1.5 text-xs"
												>
													{commandSurface.pendingAction ===
													"submit_provider_flow_input" ? (
														<LoaderCircle className="h-3 w-3 animate-spin" />
													) : (
														<ShieldCheck className="h-3 w-3" />
													)}
													Continue
												</Button>
												<Button
													type="button"
													variant="ghost"
													size="sm"
													disabled={authBusy}
													onClick={() =>
														void cancelProviderFlowFromSurface(
															activeFlow.flowId,
														)
													}
													className="h-7 text-xs"
												>
													Cancel
												</Button>
											</div>
										</form>
									)}
								</div>
							)}

						{/* Bridge auth refresh status */}
						{onboarding.bridgeAuthRefresh.phase !== "idle" && (
							<div className="rounded-lg border border-border/50 bg-card/50 px-3 py-2.5 text-xs">
								<span className="font-medium text-foreground">
									Auth refresh
								</span>
								<span className="ml-2 text-muted-foreground">
									{onboarding.bridgeAuthRefresh.phase === "pending"
										? "Refreshing…"
										: onboarding.bridgeAuthRefresh.phase === "failed"
											? onboarding.bridgeAuthRefresh.error || "Failed."
											: "Complete."}
								</span>
							</div>
						)}
					</div>
				)}
			</div>
		);
	};

	// ═══════════════════════════════════════════════════════════════════
	// SECTION DISPATCH
	// ═══════════════════════════════════════════════════════════════════

	const renderAdminSection = () => (
		<div className="space-y-5" data-testid="command-surface-admin">
			<SectionHeader
				title="Admin"
				status={
					<Badge
						variant="outline"
						className="border-warning/20 bg-warning/[0.06] text-[10px] text-warning"
					>
						Dev only
					</Badge>
				}
			/>

			{/* Master toggle */}
			<ToggleRow
				label="UI overrides"
				description="Enable keyboard shortcuts and forced UI states for development"
				checked={devOverrides.enabled}
				onCheckedChange={devOverrides.setEnabled}
				testId="admin-ui-overrides-master"
			/>

			{/* Individual overrides — only visible when master is on */}
			{devOverrides.enabled && (
				<div className="space-y-2 rounded-lg border border-border/50 bg-card/50 p-3">
					<div className="text-[11px] font-semibold uppercase tracking-wider text-muted-foreground">
						Override shortcuts
					</div>
					{DEV_OVERRIDE_REGISTRY.map((entry) => (
						<div
							key={entry.key}
							className="flex items-start justify-between gap-3 rounded-md px-3 py-2.5 transition-colors hover:bg-foreground/[0.03]"
						>
							<div className="min-w-0 flex-1">
								<div className="flex items-center gap-2">
									<span className="text-sm font-medium text-foreground">
										{entry.label}
									</span>
									<Badge
										variant="outline"
										className="border-border font-mono text-[10px] text-muted-foreground"
									>
										{entry.shortcutLabel}
									</Badge>
								</div>
								<p className="mt-0.5 text-xs text-muted-foreground">
									{entry.description}
								</p>
							</div>
							<Switch
								checked={devOverrides.overrides[entry.key]}
								onCheckedChange={() => devOverrides.toggle(entry.key)}
								data-testid={`admin-override-${entry.key}`}
							/>
						</div>
					))}
				</div>
			)}

			{/* Onboarding — one-click launch */}
			<div className="rounded-lg border border-border/50 bg-card/50 p-3 space-y-3">
				<div className="text-[11px] font-semibold uppercase tracking-wider text-muted-foreground">
					Onboarding
				</div>
				<div className="flex items-center justify-between gap-3 px-3 py-2.5">
					<div className="min-w-0 flex-1">
						<div className="text-sm font-medium text-foreground">
							Run setup wizard
						</div>
						<p className="mt-0.5 text-xs text-muted-foreground">
							Opens the full onboarding flow as a new user would see it.
						</p>
					</div>
					<Button
						type="button"
						size="sm"
						className="h-8 shrink-0 gap-1.5 text-xs"
						onClick={() => {
							closeCommandSurface();
							// Small delay so the sheet closes before the gate renders
							window.setTimeout(() => {
								if (!devOverrides.enabled) devOverrides.setEnabled(true);
								if (!devOverrides.overrides.forceOnboarding)
									devOverrides.toggle("forceOnboarding");
							}, 150);
						}}
						data-testid="admin-trigger-onboarding"
					>
						Launch
					</Button>
				</div>
			</div>

			<div className="rounded-lg border border-border/50 bg-card/50 px-3 py-2.5 text-xs text-muted-foreground">
				This tab is only visible when running via{" "}
				<code className="rounded bg-muted px-1 py-0.5 font-mono text-[11px]">
					npm run sf:server
				</code>
				. Overrides reset on page refresh.
			</div>
		</div>
	);

	const renderSection = () => {
		switch (commandSurface.section) {
			case "general":
				return <GeneralPanel />;
			case "experimental":
				return <ExperimentalPanel />;
			case "model":
				return (
					<div className="space-y-8">
						{renderModelSection()}
						<div className="border-t border-border/50 pt-6">
							{renderThinkingSection()}
						</div>
					</div>
				);
			case "thinking":
				return (
					<div className="space-y-8">
						{renderModelSection()}
						<div className="border-t border-border/50 pt-6">
							{renderThinkingSection()}
						</div>
					</div>
				);
			case "session-behavior":
				return (
					<div className="space-y-6">
						{renderQueueSection()}
						<div className="border-t border-border/50 pt-4">
							{renderCompactionSection()}
						</div>
						<div className="border-t border-border/50 pt-4">
							{renderRetrySection()}
						</div>
					</div>
				);
			// Legacy section routes — redirect to merged panels
			case "queue":
				return (
					<div className="space-y-6">
						{renderQueueSection()}
						<div className="border-t border-border/50 pt-4">
							{renderCompactionSection()}
						</div>
						<div className="border-t border-border/50 pt-4">
							{renderRetrySection()}
						</div>
					</div>
				);
			case "compaction":
				return (
					<div className="space-y-6">
						{renderQueueSection()}
						<div className="border-t border-border/50 pt-4">
							{renderCompactionSection()}
						</div>
						<div className="border-t border-border/50 pt-4">
							{renderRetrySection()}
						</div>
					</div>
				);
			case "retry":
				return (
					<div className="space-y-6">
						{renderQueueSection()}
						<div className="border-t border-border/50 pt-4">
							{renderCompactionSection()}
						</div>
						<div className="border-t border-border/50 pt-4">
							{renderRetrySection()}
						</div>
					</div>
				);
			case "recovery":
				return renderRecoverySection();
			case "auth":
				return renderAuthSection();
			case "admin":
				return renderAdminSection();
			case "git":
				return renderGitSection();
			case "resume":
				return renderSessionBrowserSection("resume");
			case "name":
				return renderSessionBrowserSection("name");
			case "fork":
				return renderForkSection();
			case "session":
				return renderSessionSection();
			case "compact":
				return renderCompactSection();
			case "workspace":
				return <DevRootSettingsSection />;
			case "integrations":
				return <RemoteQuestionsPanel />;
			case "sf-forensics":
				return <ForensicsPanel />;
			case "sf-doctor":
				return <DoctorPanel />;
			case "sf-skill-health":
				return <SkillHealthPanel />;
			case "sf-knowledge":
				return <KnowledgeCapturesPanel initialTab="knowledge" />;
			case "sf-capture":
				return <KnowledgeCapturesPanel initialTab="captures" />;
			case "sf-triage":
				return <KnowledgeCapturesPanel initialTab="captures" />;
			case "sf-prefs":
				return (
					<div className="space-y-6">
						<DevRootSettingsSection />
						<PrefsPanel />
						<ModelRoutingPanel />
						<BudgetPanel />
						<RemoteQuestionsPanel />
						<GeneralPanel />
						<ExperimentalPanel />
					</div>
				);
			case "sf-mode":
				return <ModelRoutingPanel />;
			case "sf-config":
				return <BudgetPanel />;
			case "sf-quick":
				return <QuickPanel />;
			case "sf-history":
				return <HistoryPanel />;
			case "sf-undo":
				return <UndoPanel />;
			case "sf-steer":
				return <SteerPanel />;
			case "sf-hooks":
				return <HooksPanel />;
			case "sf-inspect":
				return <InspectPanel />;
			case "sf-export":
				return <ExportPanel />;
			case "sf-cleanup":
				return <CleanupPanel />;
			case "sf-queue":
				return <QueuePanel />;
			case "sf-status":
				return <StatusPanel />;
			default:
				// Safety net for any unknown SF surface
				if (commandSurface.section?.startsWith("sf-")) {
					return (
						<div
							className="p-4 text-sm text-muted-foreground"
							data-testid={`sf-surface-${commandSurface.section}`}
						>
							<p className="font-medium text-foreground">
								/{commandSurface.section.slice(4)}
							</p>
							<p className="mt-1">Unknown SF surface.</p>
						</div>
					);
				}
				return null;
		}
	};

	// ═══════════════════════════════════════════════════════════════════
	// RENDER
	// ═══════════════════════════════════════════════════════════════════

	const isSingleSection = surfaceSections.length <= 1;
	const isGitSurface = commandSurface.activeSurface === "git";
	const gitResult = gitSummary.result;

	const renderGitHeader = () => {
		const branchName =
			gitResult?.kind === "repo" ? (gitResult.branch ?? "detached") : null;
		const mainBranch = gitResult?.kind === "repo" ? gitResult.mainBranch : null;
		const hasChanges =
			gitResult?.kind === "repo" ? gitResult.hasChanges : false;
		const isClean = gitResult?.kind === "repo" && !hasChanges;

		return (
			<div className="border-b border-border/50 px-5 py-4">
				<div className="flex items-start justify-between gap-3">
					<div className="flex items-center gap-3">
						<div
							className={cn(
								"flex h-8 w-8 items-center justify-center rounded-lg",
								isClean
									? "bg-success/10"
									: hasChanges
										? "bg-warning/10"
										: "bg-card/50",
							)}
						>
							<GitBranch
								className={cn(
									"h-4 w-4",
									isClean
										? "text-success"
										: hasChanges
											? "text-warning"
											: "text-muted-foreground",
								)}
							/>
						</div>
						<div>
							<div className="flex items-center gap-2">
								<h2
									className="text-sm font-semibold text-foreground"
									data-testid="command-surface-title"
								>
									{branchName ?? "Git"}
								</h2>
								{branchName && mainBranch && branchName !== mainBranch && (
									<span className="text-[11px] text-muted-foreground">
										from {mainBranch}
									</span>
								)}
							</div>
							{gitResult?.kind === "repo" && (
								<div className="mt-0.5 flex items-center gap-1.5">
									<StatusDot
										status={isClean ? "ok" : hasChanges ? "warning" : "idle"}
									/>
									<span className="text-[11px] text-muted-foreground">
										{isClean
											? "Clean"
											: hasChanges
												? "Changes detected"
												: "Loading…"}
									</span>
								</div>
							)}
						</div>
					</div>
					<div className="flex items-center gap-1">
						<Button
							type="button"
							variant="ghost"
							size="icon"
							onClick={() => void loadGitSummary()}
							disabled={gitSummaryBusy}
							aria-label="Refresh"
							className="h-7 w-7"
						>
							<RefreshCw
								className={cn("h-3.5 w-3.5", gitSummaryBusy && "animate-spin")}
							/>
						</Button>
						<Button
							type="button"
							variant="ghost"
							size="icon"
							onClick={closeCommandSurface}
							aria-label="Close"
							className="h-7 w-7"
						>
							<X className="h-3.5 w-3.5" />
						</Button>
					</div>
				</div>
			</div>
		);
	};

	const renderDefaultHeader = () => (
		<div className="flex items-center justify-between gap-3 border-b border-border/50 px-5 py-4">
			<div>
				<div className="text-xs uppercase tracking-wider text-muted-foreground">
					Command surface
				</div>
				<div
					className="text-lg font-semibold text-foreground"
					data-testid="command-surface-title"
				>
					{surfaceTitle(commandSurface.activeSurface)}
				</div>
			</div>
			<div className="flex items-center gap-2">
				<div
					className="rounded-full border border-border bg-card px-2.5 py-1 text-xs font-medium text-muted-foreground"
					data-testid="command-surface-kind"
				>
					{surfaceKindLabel}
				</div>
				<Button
					type="button"
					variant="ghost"
					size="icon"
					onClick={closeCommandSurface}
					aria-label="Close"
					className="h-8 w-8"
				>
					<X className="h-4 w-4" />
				</Button>
			</div>
		</div>
	);

	return (
		<Sheet
			open={commandSurface.open}
			onOpenChange={(open) => !open && closeCommandSurface()}
		>
			<SheetContent
				side="right"
				className="flex h-full w-full flex-col p-0 sm:max-w-[540px]"
				data-testid="command-surface"
			>
				{/* Visually hidden accessible title */}
				<SheetHeader className="sr-only">
					<SheetTitle>{surfaceTitle(commandSurface.activeSurface)}</SheetTitle>
					<SheetDescription>Settings and controls</SheetDescription>
				</SheetHeader>

				<div className="flex h-full min-h-0">
					{/* ─── Left nav rail (hidden for single-section surfaces) ─── */}
					{!isSingleSection && (
						<nav
							className="flex w-12 shrink-0 flex-col items-center gap-0.5 border-r border-border/50 bg-card/50 py-3"
							data-testid="command-surface-sections"
						>
							{surfaceSections.map((section) => {
								const active = commandSurface.section === section;
								return (
									<Tooltip key={section}>
										<TooltipTrigger asChild>
											<button
												type="button"
												className={cn(
													"flex h-9 w-9 items-center justify-center rounded-lg transition-colors",
													active
														? "bg-foreground/10 text-foreground"
														: "text-muted-foreground hover:bg-foreground/[0.04] hover:text-foreground",
												)}
												onClick={() => setCommandSurfaceSection(section)}
												data-testid={`command-surface-section-${section}`}
											>
												{sectionIcon(section)}
											</button>
										</TooltipTrigger>
										<TooltipContent side="right" sideOffset={6}>
											{sectionLabel(section)}
										</TooltipContent>
									</Tooltip>
								);
							})}
						</nav>
					)}

					{/* ─── Right content area ────────────────────────────────── */}
					<div className="flex min-h-0 min-w-0 flex-1 flex-col">
						{isGitSurface ? renderGitHeader() : renderDefaultHeader()}
						{(commandSurface.lastResult || commandSurface.lastError) && (
							<div
								className={cn(
									"border-b border-border/50 px-5 py-3 text-xs",
									commandSurface.lastError
										? "bg-destructive/5 text-destructive"
										: "bg-success/5 text-success",
								)}
								data-testid="command-surface-result"
							>
								{commandSurface.lastError ?? commandSurface.lastResult}
							</div>
						)}
						<ScrollArea
							className="min-h-0 flex-1"
							viewportRef={commandSurfaceViewportRef}
						>
							<div className="px-5 py-5">{renderSection()}</div>
						</ScrollArea>
					</div>
				</div>
			</SheetContent>
		</Sheet>
	);
}
